Find the sum and product of the roots for each of the following quadratic equations
`x^(2)+3x-28=0`

Find the sum and product of the roots for each of the following quadratic equations x^(2)+3x=0

Find the sum and product of the roots for each of the following quadratic equations 3y^(2)-y-4=0

Find the sum and product of the roots for each of the following quadratic equations 3+(1)/(a)=(10)/(a^(2))

Solve the following quadratic equations : x^(2)-4x-3=0